metal-soy-critic/lib/soy-traverse.js

A metal-soy code validation utility.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function noop() { }
function getEnter(handler) {
    if (typeof handler === 'function') {
        return handler;
    }
    else if (handler && handler.enter) {
        return handler.enter;
    }
    return noop;
}
function getExit(handler) {
    if (typeof handler === 'object' && handler.exit) {
        return handler.exit;
    }
    return noop;
}
function visit(node, visitor) {
    const handler = visitor[node.type];
    getEnter(handler)(node);
    if (node.body) {
        if (Array.isArray(node.body)) {
            node.body.forEach(node => visit(node, visitor));
        }
        else {
            visit(node.body, visitor);
        }
    }
    getExit(handler)(node);
}
exports.default = visit;